Font size module categories on 1 level too big after update

-- url of the page with the problem -- : www.oorsuizen.eu
-- HikaShop version -- : 3.2.2
-- Joomla version -- : 3.8.3
-- PHP version -- : 5.3.30
-- Browser(s) name and version -- : FF 57.0

After updating to the newest Hikashop version 3.2.2 the font size now is too big. How must I change that again to a smaller font size?

See : www.hikashop.com/support/documentation/1...the-display.html#css

Thank you.
What was the matter: styles for the front end was left at NONE after the installation. This has to be set at default, now the font size is back to normal.
(system --> configuration --> display --> CSS options)